Envelope



W. HELEZER ENVELOPE f Filed April 21, 1928 ATTORNEY June .17, 1 930.

.provide a means for joining'the edges of an" Patented June 17,4 *1930 UNITED "STATES minar OFFICE WALTER HELEZER; F CHICAGO, ILLINOIS, ASSIGNOR OF ONE-UTENTE', TO JOSEPH ZAJAOZEK, OF CHICAGO,` .ILLINOIS nnvnrorn Application and apra 2.1,

This invention relates to certain novel iniprovenients 1n envelopes, and has for its. principal -obJect the provision oit an 1m AAnother objecto'f my invention is to provide an envelope ofthe above named charac- .ter which may be arranged suoli that the usual-flaps employed to provide the sides of "an Venvelopcmaybe omitted so as to afford considerable saving in the material. A further object of the invention is to envelope formed from a blank et the above .named -character Which'- Will .be 'arranged such that unauthorized openingthe'reof will 29 be prevei'ited.- l

'A further object pli the invention is to ,provide a device whielrmay be associated With the Hap of the envelope 'in order to facilitatethe sealing of said flap and to arrange this device in such a manner that it will serve as a detecting elementso as to reveal tampering with the envelope.

A still further object of the' invention,

9 ',.ancilliary td the Jforegoing, is to `provide a deviceof the above named type which will :loe arranged in such a manner that it may be-associated with an envelope of any desired' shape or form.

yOther objects will appear hereinafter.

" The invention consists in the novel combination and arrangement of parts, to vbe hereinafter described and claimed..v l

The invention Willbe best understood by v reterence'- to the accompanying drawings,

wherein apreferred form-ot' construction is shown, and in Which: y

Fig. l is an elevational view depicting the blank from which a preferred embodimentl ofmy invention is associated;

Fig. 2, a. view ci an envelopeyiormed. .from the blank disclosed in Fig. '1, showing 'theiiap in open position; Fig. 3 isa view substantially similar t0, 5e Fig. 2 showing the flap in closed position;

l drawings. Preferably,

192s. 'serial No. 271,918.

Fig. 5 is a view depicting amodilied form.

` of construction Fig. 6 is a sectional view taken substantially-on the line G-'G on F ig. 5;'and

Figs. 7 and 8 are elevational views depicting a further modified form .of construction for my' invention.

In the drawingsJ and more particularly in Figs. 1 to #l inclusive,`l depict an envelope Which'inclndes 'a front portion l0 which has a rear portion l1. and a flap portion lf2 conw nected thereto along the transverse edges 1thereo- `A fold line 13 is provided at the juncture between the-.front 10 and the rear portion l1 and a fold vline l-'l is provided .between the juncture of the front portion -10 and the liap l2. The envelope is adapted to be vlorm'edby folding. the `back portion 1l along the line 13 in snchamanner that it' Will be disposedover the' fold portion 10. The open side edges are thenl closed by suitable stitching indicated b v 15 -in the V this stitching is started on the Hap l2 at substantially the mid-point in the extent thereof and extends along said flap and down one side and then across the envelope above the :told line i3 and then up the opposite side and then across the flap 12 to substantially the midpoint thereof. In this mannenthe ends` of the stitching are disposed on the inner side of the flap 12. These ends are adapted to be arranged so as to be preventedl from displacement an d one method of accomplishing this disclosed in `Fig. 2, -wherein it is shown that a suitable strip `of paper or the like indicated by 16l in the drawings is adhesively securedover the ends of the stitching so as 'Ato prevent displacement thereof.

It is tobe understood however, that these ends might be joined in any desired nia-nner as by mounting or the like and still not depart from the purview-ot my invention. It 'is appareijit from the foregoing that, in or-v deto attain access into the interior of the envelope7 it' ivillA be necessary to break the stitching, which obviously would ali'ord a IDO . means of detecting` tampering for it is apafter the 'Hap has been foldedparent that.

vover to the position illustrated in Fig. 3,

the ends of the stitching are positioned thereunder, and thus displacement of these ends is prevented.

As best illustrated in Figs. 2 and 3, the side of the flap which is adapted to bedisposed inA engagement with the portion 11 when said flap is moved to closing position is provided along the edge thereof with a suitable adhesive indicated by 17. Preferably, the tlap 12 is provided with a tongue portion .18 at substantially the mid-point thereof. In the back portion 11 at substantially the point best illustrated in Fig. 1, av slot 19 is provided which is arranged so as to provide a relatively short tongue portion 20. My detectingr device includes a sheet of transparent material 21 whichis preferably formed of a transparent paper, and this detecting device also includes a sheet of relative thin tissue or rice straw paper, indicated by 22 in the drawings,

. which is adapted to be mounted vbelow the sheet of transparent material 21. Preferably, on the sheet of material 22 on the side thereof disposed toward the sheet of material 21, I provide suitable indicia such as a rm name or the like which is imprinted thereon in any approved manner and this indicia is indicated by 23 in the drawings. The sheets of material 21 .and 22 are adapted to bedisposed on the outer face of the backu portion 11 and are preferably arranged such that the lower edge thereof will be disposed in the notch 19 in order that the` tongue 20 lwill extend across these sheets of material as best illustrated in Fig. 2. Suitable stitching is then provided which is indicated by 24 in the drawings and` this stitching is adapted to extend around the edgesv of the sheets of material 21 and 22 so as lto hold said sheets of material in position and this stitching is adapted to extend across the upper side of the tongue portion 20. This stitching 24 extends only along three sides of the lmaterial 21 and 22 so as to leavethe edge covered by the edge of the tongue portion 22 open and the ends of this stitching 24 are extended-upwardly from 'the' sides of the vsheets of material and preferably, the ends are knotted or similarly secured inte riorly of the envelope so'as to prevent displacement thereof. The portion of the tongue 18 along the edges thereof and on the side opposite Ythat provided with the adhesive 17 is provided with an additionalV adhesive substance indicated by 25 in the drawings. The adhesive substance 17 and ,25 are preferably of the type which will be adherent when moistened and therefore, by moistening these adhesives and positioning the Hap 12'as indicated in Fig. 3 such that the tongue 18 will extend through the open wearer edge of the sheets of material 21 and 22 so as to Ybe disposed therebelow, it is apparent that the flap 12 may be secured in position. rlhe adhesive substance 17 will adhere to the portion 11 and thussecure the flap 12 in position. The adhesive substance 25 will adhere to the sheet of material 22. It is apparent that since the sheet of material 22 is formed of a relatively thin paper, that displacement of the tongue' portionI 18 will be prevented without destroying this sheet of material-22, which will obviously afford an expeditious manner of detecting unauthorized tampering with the envelope. |I`his sheetu of material is preferably of such a thickness and of such a constituency that the usual soakintr or steaming will result in the destruction thereof and will also cause `blurring of the indicia 23 printed thereon.

envelope and will readily detect any unauthorized tampering therewith.

In Fig. 5, I have depicted a modified form of construction. In thisinstance, the main front portion ofthe envelope is provided with' sidetlaps 26 which are bent to extend over the rear portion of the envelope, it being understood that similar reference characters are used in this figure to indicate similar parts to the parts illustrated in Figs. l to et inclusive. These flaps 26 may, if desired, be adhesively secured to the face of the rear portion 11 and in addition to this suitable staple fasteners indicated by 27 in the drawings may be'passed through these iiaps 26 andthe rear wall 11 in such a manner that the en'ds ofthe staple members 27 will be disposed interiorly of the envelope. Similar staple members 28 are employed to position the sheets of material 21 and 22 and it is therefore apparent that the sheets of material 21 and 22 will co-operate with the tongue portion to detect unauthorized tam- 'pering with the envelope and it is also apparent that the staple members 27 and 28 are to co-operate due to the fact that the limb portions thereof are disposed so as to be inaccessible.

In Fig. 7, a further modified form of coni struction is shown and in this instance, an

venvelope is provided which includesthe usual side flaps 28. A Staples, substantially similar to the staples 27 and indicated by 29 in the drawings, are arranged so as to lock the ends of the flaps 28 and also the sheets of -material 21 and 22 in position and-a similar same manner as the device illustrated .in 'I Fig. to'prevent unauthorized tampering with thefenvelope since it willlldetectlany tampering l l In Fig. 8, a further modified formofconf` struction is shown. In this instance, an eny velope is provided which includes theusual end flaps 30. The rear side 1l and the sheets of material 21 and 22 are adapted to. be secured in the same manner as was carried out in Fig ll and 4 inclusive. However', addi tionalstitching indicated vby 3l is provided which is adapted `to extend diagonally across theselsheets of material 2l and .22 so as to provide four pockets therebelow which are disposed in cooperating pairs. The horizontally disposed pairs of pockets are arranged such that the lowermost thereof is secured below? the tongue 2O and the pocket opposite this pocket is adapted to receive the tongue portion 18 of the flap l2 inthe usual mani .adapted to be hingedly connected to said ner. The side flaps are adapted to be insertedv into the remaining ofthe pockets and these side flaps' 30 are provided with' an .adhes've substance indicated by 82 on the face t ereof so as to be secured to 'the rear portio ll and in addition to this, these flaps 30 have'an adhesive provided adjacent the apex which is indicated by 23 in the drawing and which is substantially similar .to the adhesive indicated by 25 and whichserves a similar purpose. It isXtherefore apparent that this envelopehas all movable portions thereof associated 'with the vdetecting device comprising the sheets of material 2l and 22 and therefore, anyv unauthorized ltampering with this envelopevwill be indicated by these sheets.

. It lis apparent fromthe foregoing descrip-- tion, that I have provided an envelope which willbe arranged in such a manner that unauthorized tampering With the envelope such as attemptto open it will be indicated on de- ;tecting portions provided thereon and these detecting portions will be arranged such that evidence of tampering will'fbe readily apparent. Y

WhileI have illustrated and described the 'preferred form of constructionV for carrying my invention into effect, this is capablcof variation and modification Without departing from the spirit of the invention. Therefore,I do not wish to be limited to the pre' cise details of construction herein set'forth, but desire tov avail myself of such variations and modifications as come' within the scope of the appended claims.

below said transparent sheet whereby they 4portion of said flap inserted thereunder may be adhesiyely secured thereto.

2. In av deviceofthe class described, an l envelope including a flap portion', means adapted to receive aportion of said flap when saidflap is disposed in closing po'sition, said means including a sheet of trans' parent material and av sheet of relatively thin and weak paper adapted to be mounted below said transparent sheet whereby the portion of said flap inserted thereunder may be adhesively secured thereto, and means for securing said sheets of materials to the back of said envelope.

In adevice of the classY described, an-

envelope including a front portion and a rear portion hingedly connected thereto along one end thereof and Hap portions thereunder so as to be adhesively secured to said Isheet of relatively thin and wea-lr material., Y l 4. In a device of the class described, an

lenvelope including a front 'portion and arcar portion hingedly' connected thereto along one'v edge thereof 'and flap portions adapted to be hingedly lconnected to said front portion, a sheet of transparent mate- .90 velope whereby said flaps may bel inserted rial, a vsheet of relativelyA thin and weak material disposed belowsaid sheet of transparent .material, means for securing said sheet of material to the back of saidenvclope .whereby .said flaps may be inserted lthereunder so as to be adhesively secured to said sheet of relatively thin and Weak material, saidhback portion having a notch portion formed therein providing a tongue adapted to be inserted vover said sheets of material whereby to locate 4and hold said sheets of' material in position. In-testimony whereof I atlix my signature. WALTER I-IELHZER.

I-Iaying thus described my invention, what 1 I claim -as new anddesire to protect' by` v Letters latentiisgm .v

1. In a deyice of thel class described, an envelope including a iiapv portion, means adapted to receive la portion vof said flap when said flap is disposed in closing position, said means including a sheet of transparent material and a sheet of relatively thin and weak paper adapted to be mounted lia 

